195 research outputs found

    B Decays and CP Violation from BaBar

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    We present some recent BABAR measurements of the magnitudes of the elements Vub and Vcb of the Cabibbo-Kobayashi-Maskawa quark-mixing matrix, and of the angles alpha and gamma of the unitary triangle of the standard model of the electroweak interactions. Most of the measurements presented here are based on the full BABAR Y(4S) dataset, consisting of about 467 million B anti-B pairs.Comment: 16 pages, 10 eps figures, invited talk presented at the 8th Latin American Symposium on High Energy Physics, 6/12/2010 - 12/12/2010, Valparaiso, Chil

    Searches for New Physics in CP Violation from BaBar

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    Results of recent searches for new physics in CP violation in charm decays from the BABAR experiment are presented. These results include a measurement of D0D^0 - Dˉ0\bar{D}^0 mixing and searches for CP violation in two-body D0D^0 decays, a search for CP violation in the charm decays D±→KS0K±D^{\pm} \to K^0_S K^{\pm} and Ds±→KS0K±D^{\pm}_s \to K^0_S K^{\pm}, KS0π±K^0_S \pi^{\pm}, and a search for direct CP violation in the singly-Cabibbo suppressed D±→K+K−π±D^{\pm} \to K^+ K^- \pi^{\pm} decays. These studies are based on the final dataset collected by BABAR at the PEP-II B factory at SLAC in the period 1999-2008. No evidence of CP violation is found in these charm decays. The measured mixing parameter yCP=[0.72±0.18(stat)±0.12(syst)]y_{CP} = [0.72 \pm 0.18 (stat) \pm 0.12 (syst)]% excludes the no-mixing null hypothesis with a significance of 3.3σ\sigma.Comment: 9 pages, 5 pdf figures, contributed to the Proceedings of QUARKS-2012, 17th International Seminar on High Energy Physics, Yaroslavl, Russia, 4-10 June, 201

    Recent CKM and CP Results from BaBar

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    We present recent results of B and charm decays from the BaBar experiment. These results include searches for rare or forbidden charm decays, measurements of ∣Vub∣|V_{ub}| from inclusive Bˉ→XulΜˉ{\bar B} \rightarrow X_u l {\bar \nu} decays, observation of the semileptonic Bˉ→D(∗)τ−Μˉτ{\bar B} \rightarrow D^{(*)} \tau^- {\bar \nu}_{\tau} decays, direct CP violation asymmetry in B→Xs+dÎłB \rightarrow X_{s+d} \gamma and in D+→KS0π+D^+\rightarrow K^0_S \pi^+, and T-violation in D(s)+→K+KS0π+π−D^+_{(s)} \rightarrow K^+ K^0_S \pi^+ \pi^-. These studies are based on the final dataset collected by BaBar at the PEP-II B factory at SLAC in the period 1999-2008.Comment: 16 pages, 10 pdf figures, contributed to the Proceedings of the 5th High-Energy Conference in Madagascar (HEP MAD-11) 25 - 31 August 2011, Antananarivo (Madagascar

    Hearing loss in peripheral facial palsy after decompression surgery

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    Facial paralysis can result from a variety of etiologies; the most common is the idiopathic type. Evaluation and treatment are particularly complex. The treatment of acute facial paralysis may require facial nerve decompression surgery. Any structure near the path of the facial nerve is at risk during transmastoid decompression surgery. AIM: This is a retrospective study, carried out in order to evaluate hearing loss after transmastoid decompression and how idiopathic cases evolved in terms of their degree of paralysis in the last 15 years. MATERIALS AND METHODS: We selected the charts from 33 patients submitted to transmastoid facial nerve decompression in the past 15 years and we assessed their hearing loss and facial paralysis. RESULTS: There was a high percentage (61%) of patients with some degree of hearing loss after the procedure and in all cases there was improvement in the paralysis. DISCUSSION: The values obtained are similar to those reported in the literature. One possible explanation for this hearing loss is the vibration transmission by drilling near the ossicular chain. CONCLUSION: The surgical procedure is not risk free; indications, risks and benefits should be explained to patients through an informed consent form.A paralisia facial pode resultar de uma variedade de etiologias, sendo a mais comum a idiopĂĄtica. A avaliação e o tratamento sĂŁo particularmente complexos. O tratamento da paralisia facial aguda pode envolver cirurgia de descompressĂŁo do nervo facial. Qualquer estrutura perto do trajeto do nervo facial estĂĄ em risco durante a cirurgia de descompressĂŁo via transmastoidea. OBJETIVO: Estudo retrospectivo que irĂĄ avaliar a perda auditiva apĂłs descompressĂŁo via transmastoidea e a evolução do grau de paralisia nos casos idiopĂĄticos dos Ășltimos 15 anos. MATERIAL E MÉTODO: Foram selecionados prontuĂĄrios de 33 pacientes submetidos Ă  descompressĂŁo do nervo facial via transmastoidea nos Ășltimos 15 anos e avaliou-se a perda auditiva e a paralisia facial. RESULTADOS: Observou-se alta porcentagem (61%) dos pacientes com algum grau de perda auditiva apĂłs o procedimento e, em todos os casos, houve melhora da paralisia. CONCLUSÃO: O procedimento cirĂșrgico nĂŁo Ă© isento de riscos. IndicaçÔes, riscos e benefĂ­cios devem ser esclarecidos aos pacientes por meio de consentimento informado.UNIFESP-EPMUNIFESP-EPM Setor de OtologiaUNIFESP, EPM, Setor de OtologiaSciEL

    O ensino superior nos territĂłrios ocupados da Palestina.

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    O presente artigo é um documento com características essencialmente de informação sobre uma região singular do mundo - a Palestina. Mais especificamente, os Territórios Ocupados por Israel (excluindo os Montes Golan, uma parcela do território nacional sírio), frequentemente apresentados de forma parcial e, portanto, inquinada

    Measurement of ISR-FSR interference in the processes e+ e- --> mu+ mu- gamma and e+ e- --> pi+ pi- gamma

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    Charge asymmetry in processes e+ e- --> mu+ mu- gamma and e+ e- --> pi+ pi- gamma is measured using 232 fb-1 of data collected with the BABAR detector at center-of-mass energies near 10.58 GeV. An observable is introduced and shown to be very robust against detector asymmetries while keeping a large sensitivity to the physical charge asymmetry that results from the interference between initial and final state radiation. The asymmetry is determined as afunction of the invariant mass of the final-state tracks from production threshold to a few GeV/c2. It is compared to the expectation from QED for e+ e- --> mu+ mu- gamma and from theoretical models for e+ e- --> pi+ pi- gamma. A clear interference pattern is observed in e+ e- --> pi+ pi- gamma, particularly in the vicinity of the f_2(1270) resonance. The inferred rate of lowest order FSR production is consistent with the QED expectation for e+ e- --> mu+ mu- gamma, and is negligibly small for e+ e- --> pi+ pi- gamma.Comment: 32 pages,29 figures, to be submitted to Phys. Rev.

    Consensus guidelines for the detection of immunogenic cell death

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    none82siApoptotic cells have long been considered as intrinsically tolerogenic or unable to elicit immune responses specific for dead cell-associated antigens. However, multiple stimuli can trigger a functionally peculiar type of apoptotic demise that does not go unnoticed by the adaptive arm of the immune system, which we named "immunogenic cell death" (ICD). ICD is preceded or accompanied by the emission of a series of immunostimulatory damage-associated molecular patterns (DAMPs) in a precise spatiotemporal configuration. Several anticancer agents that have been successfully employed in the clinic for decades, including various chemotherapeutics and radiotherapy, can elicit ICD. Moreover, defects in the components that underlie the capacity of the immune system to perceive cell death as immunogenic negatively influence disease outcome among cancer patients treated with ICD inducers. Thus, ICD has profound clinical and therapeutic implications. Unfortunately, the gold-standard approach to detect ICD relies on vaccination experiments involving immunocompetent murine models and syngeneic cancer cells, an approach that is incompatible with large screening campaigns. Here, we outline strategies conceived to detect surrogate markers of ICD in vitro and to screen large chemical libraries for putative ICD inducers, based on a high-content, high-throughput platform that we recently developed. Such a platform allows for the detection of multiple DAMPs, like cell surface-exposed calreticulin, extracellular ATP and high mobility group box 1 (HMGB1), and/or the processes that underlie their emission, such as endoplasmic reticulum stress, autophagy and necrotic plasma membrane permeabilization. We surmise that this technology will facilitate the development of next-generation anticancer regimens, which kill malignant cells and simultaneously convert them into a cancer-specific therapeutic vaccine.Kepp, Oliver; Senovilla, Laura; Vitale, Ilio; Vacchelli, Erika; Adjemian, Sandy; Agostinis, Patrizia; Apetoh, Lionel; Aranda, Fernando; Barnaba, Vincenzo; Bloy, Norma; Bracci, Laura; Breckpot, Karine; Brough, David; BuquĂ©, Aitziber; Castro, Maria G; Cirone, Mara; Colombo, Maria I; Cremer, Isabelle; Demaria, Sandra; Dini, Luciana; Eliopoulos, Aristides G; Faggioni, Alberto; Formenti, Silvia C; FučíkovĂĄ, Jitka; Gabriele, Lucia; Gaipl, Udo S; Galon, JĂ©rĂŽme; Garg, Abhishek; Ghiringhelli, François; Giese, Nathalia A; Guo, Zong Sheng; Hemminki, Akseli; Herrmann, Martin; Hodge, James W; Holdenrieder, Stefan; Honeychurch, Jamie; Hu, Hong-Min; Huang, Xing; Illidge, Tim M; Kono, Koji; Korbelik, Mladen; Krysko, Dmitri V; Loi, Sherene; Lowenstein, Pedro R; Lugli, Enrico; Ma, Yuting; Madeo, Frank; Manfredi, Angelo A; Martins, Isabelle; Mavilio, Domenico; Menger, Laurie; Merendino, NicolĂČ; Michaud, Michael; Mignot, Gregoire; Mossman, Karen L; Multhoff, Gabriele; Oehler, Rudolf; Palombo, Fabio; Panaretakis, Theocharis; Pol, Jonathan; Proietti, Enrico; Ricci, Jean-Ehrland; Riganti, Chiara; Rovere-Querini, Patrizia; Rubartelli, Anna; Sistigu, Antonella; Smyth, Mark J; Sonnemann, Juergen; Spisek, Radek; Stagg, John; Sukkurwala, Abdul Qader; Tartour, Eric; Thorburn, Andrew; Thorne, Stephen H; Vandenabeele, Peter; Velotti, Francesca; Workenhe, Samuel T; Yang, Haining; Zong, Wei-Xing; Zitvogel, Laurence; Kroemer, Guido; Galluzzi, LorenzoKepp, Oliver; Senovilla, Laura; Vitale, Ilio; Vacchelli, Erika; Adjemian, Sandy; Agostinis, Patrizia; Apetoh, Lionel; Aranda, Fernando; Barnaba, Vincenzo; Bloy, Norma; Bracci, Laura; Breckpot, Karine; Brough, David; BuquĂ©, Aitziber; Castro, Maria G; Cirone, Mara; Colombo, Maria I; Cremer, Isabelle; Demaria, Sandra; Dini, Luciana; Eliopoulos, Aristides G; Faggioni, Alberto; Formenti, Silvia C; FučíkovĂĄ, Jitka; Gabriele, Lucia; Gaipl, Udo S; Galon, JĂ©rĂŽme; Garg, Abhishek; Ghiringhelli, François; Giese, Nathalia A; Guo, Zong Sheng; Hemminki, Akseli; Herrmann, Martin; Hodge, James W; Holdenrieder, Stefan; Honeychurch, Jamie; Hu, Hong Min; Huang, Xing; Illidge, Tim M; Kono, Koji; Korbelik, Mladen; Krysko, Dmitri V; Loi, Sherene; Lowenstein, Pedro R; Lugli, Enrico; Ma, Yuting; Madeo, Frank; Manfredi, Angelo A; Martins, Isabelle; Mavilio, Domenico; Menger, Laurie; Merendino, NicolĂČ; Michaud, Michael; Mignot, Gregoire; Mossman, Karen L; Multhoff, Gabriele; Oehler, Rudolf; Palombo, Fabio; Panaretakis, Theocharis; Pol, Jonathan; Proietti, Enrico; Ricci, Jean Ehrland; Riganti, Chiara; Rovere Querini, Patrizia; Rubartelli, Anna; Sistigu, Antonella; Smyth, Mark J; Sonnemann, Juergen; Spisek, Radek; Stagg, John; Sukkurwala, Abdul Qader; Tartour, Eric; Thorburn, Andrew; Thorne, Stephen H; Vandenabeele, Peter; Velotti, Francesca; Workenhe, Samuel T; Yang, Haining; Zong, Wei Xing; Zitvogel, Laurence; Kroemer, Guido; Galluzzi, Lorenz

    A pandemic recap : lessons we have learned

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    On January 2020, the WHO Director General declared that the outbreak constitutes a Public Health Emergency of International Concern. The world has faced a worldwide spread crisis and is still dealing with it. The present paper represents a white paper concerning the tough lessons we have learned from the COVID-19 pandemic. Thus, an international and heterogenous multidisciplinary panel of very differentiated people would like to share global experiences and lessons with all interested and especially those responsible for future healthcare decision making. With the present paper, international and heterogenous multidisciplinary panel of very differentiated people would like to share global experiences and lessons with all interested and especially those responsible for future healthcare decision making.Non peer reviewe
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